Compact handheld corona cameras for daytime inspection of electrical apparatuses indoors and outdoors, with special emphasis on ergonomic design and intuitive simple operation. UVollé cameras are manufactured under adherence to rigorous quality control standards.
UVollé family incorporates the DayCor® technology, and features thereby very high sensitivity to corona signals and perfect signal positioning. UVollé has a large Sun Readable WVGA LCD, perfect for inspection in sunny conditions, and a powerful LED flashlight, to support poor lit inspected objects. UVollé is fit for remote testing of high & medium voltage apparatuses. UVollé enables seeing pinpointed image of corona partial discharge and the emitting source. The visual information can be augmented with further data about the ambient conditions and GPS, recorded and stored for analysis and documentation. UVollé reveals and displays, in real time on-the fly, existing voltage related faults.
Discover unexpected faults and pinpoint their location. Find out in real time existing corona, known as the source for corrosive processes in insulation, metal fittings, concrete etc., radio interreferences, audio noise and ultraviolet radiation
Inspectors expect to get relevant information, fast, simple and clear. UVollé is built for inspectors, offering simple intuitive operation, user friendly interface, fast response, clear results of corona events. Turn on, aim, shoot and store. Neither calibrations nor any further adjustments are needed throughout its life.
A sun readable spacious LCD with brightness control supports outdoor operation, while backlit keyboard and a powerful LED flashlight fit indoors shady conditions. Dynamic FOV with manual and auto focus match indoors inspections of nearby objects as well as outdoor inspection of remote objects. Long battery runtime support outdoor activity and AC/DC inlet is handy for indoors. Ongoing operation without overheating supports both indoors and outdoors, ensuring stable availability.
“The need for Ofil’s testing cameras has always motivated us to bring innovative solutions and find newer technologies to implement in our products, and thereby enhance their performances. We in Ofil believe that our loyal customers appreciate the quality of our products and innovative approach” says Ofil’s CEO, Mr. Moshe Goldbaum.
UVollé-SX compact bi-spectral UV-Visible still pictures camera pinpoints, displays and shoots corona and arcing during daytime. Features a 5” wide WVGA sun readable LCD
UVollé-VX compact bi-spectral UV-Visible video camera pinpoints, displays and records corona and arcing during daytime. Features a 5” wide WVGA sun readable LCD
Outstanding Features
Ofil develops and manufactures UV Bi-spectral optical and digital inspection systems with embedded proprietary patented Solar Blind technology. Ofil aims at providing precise solutions for science, industry and environmental wellness. Ofil owns the brand name DayCor® that stands for Daytime Corona detection.
| Minimum Discharge Detection | 1 pC @ 12m (tested by Innogy SE-Eurotest Germany: IEC 60270:2000 ) |
| Minimum RIV Sensitivity | 3.6 dBµV @ 1MHz @ 10m (tested by RWE-Eurotest : NEMA107-1987) |
| Minimum UV Sensitivity | 2×10-18 watt/cm2 |
| Spectral Range | 240-280nm |
| Detector Life Span | No degradation |
| UV Frames Integration | On | Off |
| Focus type | Slaved to visible |
| Minimum Visible Light Sensitivity | 0.06 Lux |
| Spectral Range | Visible range, Full color |
| Focus Range and Type | 0.9m | 1.9ft to infinity, manual & auto (0.5m | 1.6ft w/ close-up lens) |
| Zoom | 10x Optical, 12x Digital |
| Interface | RS232 |
| Working Modes | Real time, standby, off |
| Continuous Operation | Unlimited. No overheating |
| Control Inputs | Keypad hot keys & menu |
| Mounting Point | Standard 1/4” x20 thread tripod mount |
| Flashlight | Built-in, LED 2 steps |
| Image Modes | Visible/UV/Combine |
| UV/Visible Overlay Accuracy | Deviation < 1 miliradian |
| Display | 5” Transflective sun proof color LCD (800X480 pixels), 1000 cd/m2 |
| Status Indicators | Battery, Memory, Gain, Counting, Date, Selected functions, Focus, Inspection mode , corona color, GPS (access.), Temp & Humidity(access.) |
| User Configuration Settings | Corona color (White, Red , Green, Yellow, Purple ) Time, Sleep Mode, LI, LCD Parameters |
| Operating & Storage Temp Range | -20ºC up to +55ºC | -4ºF up to +131ºF |
| Encapsulation | IP54 |
| Field of View (HxV) | 6.40 x 4.80 |
| Focus | Full manual and auto focus for UV and visible channels |
| UV Zoom | 3 steps |
| Digital Storage | Removable SD card |
| Video Format | AVI |
| Stills Format | BMP |
| Audio | External microphone |
| Input | Mic (VX & VC models), AC/DC, Aux |
| Output | Aux, Mini USB, Speaker, RS232 |
| Size (LxWxH) | 29×13.6×8.5 cm | 11.4”x5.4”x3.3” |
| Weight | 1.39Kg | 3lb |
| Battery type | Li-Ion |
| Battery Run Time | 4 hours |
| External Supply | DC 9V |
| Nominal Power Consumption | 6.5-10.5VDC, 10 Watts |
Easily mounted, replacing camera’s default lenses. Close-up lenses provide macro examination of the inspected installations. Close up lenses are handy to document and record detailed view of failures and defects related to corona.
GTRH adds GPS, Temperature & humidity data to UVollé. TRH adds temperature & humidity data to Scalar, UVollé & Luminar. Data is added as metadata and appears on recorded media.
Checking a 3kV motor in a HV lab, looking for PD. UVollé pinpointed PD and helped fixing the motor. UVollé was equipped with a clip on close up lens and with the on board flash light turned on. Factory acceptance tests program for high voltage motors includes PD testing. Ofil’s #UVollé corona camera demonstrates in this movie the outcome of such a test. The setup for the test with a UV corona camera is simple and safe. The test is performed under the rated voltage and under regular ambient light conditions. The results are qualitative and objective. As seen in the video clip, the UVollé camera provides a clear and accurate view of the PD activity leading end users to the location that needs repair.
A collection of corona discharge incidents recorded by DayCor UVolle by Ofil Ltd.
DayCor® UVollé-X is a series of compact handheld corona cameras that are equipped with an outstanding sun readable display of 1000 Nits. Users of UVollé hand held cameras benefit from a camera with high sensitivity to ultraviolet radiation, reduced dimensions, affordable price and excellent performance indoors and outdoors.
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